T6856 Make Project Images that match Typeahead choices

Summary: Ref T6856, Make matching Project picture to Project icon easy.

Test Plan: Edit Project, edit Project picture, click "Use Project Icon", Project picture should now match Project icon.

Reviewers: chad, #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: btrahan, Korvin, epriestley

Maniphest Tasks: T6856

Differential Revision: https://secure.phabricator.com/D11300